冥王星的真彩色影像

2019 September 10

Pluto in True Color
Image Credit: N
ASA, JHU APL, SwRI, Alex Parker

Explanation: What color is Pluto, really? It took some effort to figure out. Even given all of the images sent back to Earth when the robotic New Horizons spacecraft sped past Pluto in 2015, processing these multi-spectral frames to approximate what the human eye would see was challenging. The result featured here, released three years after the raw data was acquired by New Horizons, is the highest resolution true color image of Pluto ever taken. Visible in the image is the light-colored, heart-shaped, Tombaugh Regio, with the unexpectedly smooth Sputnik Planitia, made of frozen nitrogen, filling its western lobe. New Horizons found the dwarf-planet to have a surprisingly complex surface composed of many regions having perceptibly different hues. In total, though, Pluto is mostly brown, with much of its muted color originating from small amounts of surface methane energized by ultraviolet light from the Sun.

冥王星的真彩色影像
影像来源:
NASA, JHU APL, SwRI, Alex Parker

说明:冥王星到底是什么颜色的?这需要费些功夫才能弄清楚。即使考虑到2015年新视野号宇宙飞船在飞越冥王星时传回地球的影像,处理这些多光谱影像以接近人眼所看到的景象也是一个挑战。这幅特征影像是新视野号获得原始数据三年后公布的,这是迄今为止拍摄的冥王星最高分辨率真彩色影像。影像中可见的浅色心形区域是汤博区,由冰冻氮构成、异常平滑的斯普特尼克号平原占据了它的西叶。新视野号发现这颗矮行星有一个由许多具有明显不同色调的区域所组成的复杂表面。不过,总的来说,冥王星大多是棕色的,大部分黯淡的颜色则来自于太阳紫外线激发的少量表面甲烷。

1 条回复

  1. 2023年4月16日

    […] 说明: 恒星是否也在去世后,作品才会受到重视呢?事实上,恒星通常在死亡时,才有最具艺术性的展示。以太阳和图中的M2-9这类小质量的恒星为例,当它们从正常恒星演化成白矮星时,会抛弃外层的气壳。而所抛出的扩张气壳,经常会形成美丽动人的行星状星云,然后在数千年内慢慢消散无踪。离我们2,100光年远的M2-9,是一个蝴蝶状的行星状星云,而这张代表色影像里的蝶翼,诉说一个怪异但不完整的故事。在星云的中心,有两颗恒星在大约10倍冥王星轨道大小的气盘里互相旋绕。垂死恒星所抛出的气壳,得挤过这个气盘,因而形成双瓣的结构。不过,产生行星状星云及它的形状的诸多物理过程,目前仍有许多不明之处。 […]

发表回复

此站点使用Akismet来减少垃圾评论。了解我们如何处理您的评论数据